Home / 637,030.23-879,138-365,143.34

Finding the Fourth Proportional to 637,030.23, 879,138 and 365,143.34

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Solution

The fourth proportional to 637,030.23, 879,138 and 365,143.34 is: 503,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,030.23 : 879,138 = 365,143.34 : x
  2. Step 2: Convert to fraction form
    637,030.23/879,138 = 365,143.34/x
  3. Step 3: Cross multiply
    637,030.23x = 879,138 × 365,143.34
  4. Step 4: Simplify right side
    637,030.23x = 321,011,381,245.23
  5. Step 5: Solve for x
    x = 321,011,381,245.23/637,030.23
  6. Step 6: Final answer
    x = 503,918.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.